Main and middle connection bearing for locomotives



l atented May 8, 1928.

came seam MAX M. rnnnson, or LAS VEGAS, NEVADA.

Mam Ann MIDDLE connnorronnsaamej FOB LOCOMOTIVES.

Application filed April 13, 1927. se iaino. 183,402. i

'Mydinvention is a main and middle connect on bearing l'or locomotives forming the pin connection from the main connecting rod to one ofthe driving wheels of the lOCO1Il0- tive.

Objections have been found to the ordinary pin connection on the drive wheel of a der, allows a slight. play or a pounding ac-' tioii.' If there is lost motion between the pins and the linksconnecting'with other drivers this also gives place to lost motion allowing the main driving wheel haven slight rotation relative to the otherdriving wheels, whereas they should all rotate simultaneously V An object of lily-invention is the construction of-a combined pin. aiidbearing so that the force transmitted by the connecting rod from the cross head is transmitted through a bearing structure to the various drive Wheels other thanthat to which the pin iscon11ect-edthe connecting rod transmitting driving force to this latter driving wheel.

In constructing my invention I secure a pin to the main driving wheel and on this pin I mount a sleeve which is tightly titted in a bearing member. This bearing inenv ber' may be connected by a link to the frontdriving Wheel, Where the pin is in the'sec- 0nd driving Wheel, and a solid connection may be tilized in the bearing to the third driving Wheel. The connecting rod is journaled-onfthe sleeve the hearing has an arm or yoke whereby the mainpart of the bearing is secured to both the inner part and the outer part of thepiir and the sleeve so that the driving force from the connectingrod is to a great extenttransniiitted directly through the sleeve to the bearing and hence to the various driving wheels.

My invention will be more readily undcrstood. from they following drawings, in Which Figure l is a side elevation of ajlocow Figure2 is an enlarged horizontal section on the line 2-2,offF 1 in thecdirection of the arrows; with certain of thejpartsbe} ing shown in plan.

Figiiire 3 is a side elevation'taken thef direction of the arrow'3 of Fig, 2. i F g.

Figure 4 a section similarto showingthe bearing member and the sleeve associated therewith sepaiiate from; the ether. parts.

driven by the connecting rod l2 whichis pivoted to the cross head '13 and thejcross head being actuated by a piston rod 'l l op; crating on the piston in the cylinder 15. The front driving wheel 16 and the third driving wheell? are directlyjcoupled to the main driving wheel ll and the rear drivin wheel l8 coupled to the third driving w eelb the hill; 19. i w

The details r my 3 and 4t:

In the drawings the main, driving Wheel is designated by the numeral l1, this being invention 4 are substaii llttlly as follows, hav ng ref rence,particu v larly to Figs. 2, e

PATENT OFFICE.

55. motive showing mybearing connected there;

A substantial pin 20 is secured in the usib al manner inthe body of the-main driying wheel 11;

member designated generally by the numer al 21, this'bearing ineniberhavinga longi tud nalibar section 22 with a cylindrical;

opening 28 therein, The front end'isjcQnjnecied to the link, 2&l'by a pin connection leads directly to the pin 27 on-thev third' This bar extension leads 25; The rearend '26 is preferably solid and driving wheel 17. past the pin 27 and by means of the 13 11128"; connects to the link 19. The links 19 and 24 are attachedto the fourth and first driw ing wheels iiithe usual manner and it is to be understood that a lesser or greater nuinber of driving wheels may be 1ltll1Z edlI1 -my construction. t y

' A yoke member-29 extends laterally from the inaiii har 22, having a rearward sup-H porting section 30' and flange section 31v parallel to-the bar 22, there being preferably" a reinforcing web 32 at the back of the rear On this pin is mounted a bearing 3 supporting section 30. A substantial sleeve 33 has a tight fit in the main portion of the bar, fitting in the opening 23, an opening 34, and the flange 31 of the yoke, and inside this sleeve there is an antifriction bearing sleeve 35.

The main connecting rod 12 has a bushing 36 therein, the head or large end 37 of this connecting rod being connected to the sleeve 33, there being a strap 38 extending around the bushing 36 and being secured by bolts 39 or the like to such large end 37 ot the connecting rod. This connection fits between the flange 31 and the main portion of the bar 22. A washer 40 and a nut 41 are us d to secure the bearing element and the large end of the connecting rod to thepin 20.

The manner of operation and functioning of my connection and bearing is substantially as follows:

When force is transmitted to the connect-- ing rod 12, either by a pull or a push on such rod, such force is transmitted to the sleeve 33 and by such sleeve transmitted to the bearing bar 22 and to the flange 31 of the yoke 29, this yoke being connected to the bar 22.

Thus the stresses which are brought to bear on the sleeve 33 being directly trans mitted to the bar 22 convey such stresses through the link 24, by means of the pin 25, to the front driving wheel 16; and by means of the solid extension rearwardly of the main portion of the bar the driving force is transmitted to the third driving wheel. The main pin 20 is not called upon to wnhstand substantially this great bending or shearing force but is employed to transmit motion from the large end of the connecting rod 12 and from the bearing and yoke to the main driving wheel 11.

It'will therefore be seen that this main pin 20 functions considerably different from the pin utilized in the old construction as it is not called upon to convey both the forces of the main connecting rodand the stresses of the links to the front and rear driving Wheels but these stresses in my construction to the front and rear drivingwheels are conveyed directly to the bar 22, the pin 20 of course acting as a guiding or centering medium in the transmission of this force.

Various changes may be made in the principles of my invention without departing from the spirit thereof. as set forth in the description, drawings and claims.

I claim:

1. In the art described the combination of a locomotive driving wheel having a pin connected thereto, a bearing member having a bearing sleeve fitted therein, the sleeve being journaled on the pin, means interconnecting the bearing member with adjacent driving wheels, and a connecting rod having a bearing on the said sleeve.

2. In the art described the combination of a locomotive driving wheel having a pin, a bearing member having a bearing sleeve therein, the sleeve being journaled on the pin, one end of said bearing member being directly connected to an adjacent driving wheel, and a connecting rod journaled on the saidsleeve. j

3. In the art described the combination of a locomotive driving wheel having a pin secured thereto, a bearing member having a bearing sleeve, the sleeve being journaled on the pin, a yoke extending laterally from the main body of the bearing member and engaging the sleeve, means interconnecting the bearing member and an adjacent driving wheel, and a connecting rod connected to the sleeve between the main body of the bearing member and the yoke.

t. in the art described. the combination of a locomotive driving wheel having a pin connected thereto, a bearing memberhaving a. laterally extending yoke, means forming a journal connection of said bearing member and yoke on the pin, a connecting rod journaled on said journal forming means between the main body of the bearing memher and the yoke, and means to connect the bearing member to an adjacent driving wheel.

5. In the art described the combination of a locomotive driving wheel having a pin conne -ted thereto, a bearing member in the form of a bar having a laterally extending yoke with a flange parallel to the said bar, a bearing sleeve secured to the bar structure and to the flange, the bar having an extension connected to an adjacent driving wheel by a pin, a connecting rod coupled to a cylinder, the connecting rod being journaled on the said sleeve between the bar structure and the flange.

(3. In the art described the combination of a locomotive driving wheel having a pin connected, thereto, a bearing member having a. bearing sleeve jonrnaled on the pin, yoke extending laterally from the main body of the bearing member and having a flange section parallel thereto, the flange section engaging the sleeve, the bearing member having an extension connected to an adjacent driving wheel by a pin, a link connected to another part of the bearing member and to another driving wheel, and a connecting rod journaled on thesleeve between the flange of the yoke and the main body of the bearing member.

In testimony whereof I have signed my name to this specification.

MAX M. TENESCH. 

